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Measurement of delayed fluorescence in N2+ with streak camera

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arxiv 2001.00437 v1 pith:N6ZRKZZV submitted 2020-01-02 physics.optics physics.plasm-ph

classification physics.opticsphysics.plasm-ph
keywords lightcameraemissionfilamentstreakaccuratealongambient
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Using a streak camera, we directly measure time- and space-resolved dynamics of N2+ emission from a self-seeded filament. We observe characteristic signatures of superfluorescence even under ambient conditions and show that the timing of the emitted light varies along the length of the filament. These effects must be taken into consideration for accurate modelling of light filaments in air, and can be exploited to engineer the temporal profile of light emission in air lasing.

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